Move skia to DEPS, and put it in third_party.

app/theme_provider.h

 // Copyright (c) 2009 The Chromium Authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
 #ifndef APP_THEME_PROVIDER_H_
 #define APP_THEME_PROVIDER_H_
 
-#include "skia/include/SkColor.h"
+#include "third_party/skia/include/core/SkColor.h"
 
 class SkBitmap;
 
 ////////////////////////////////////////////////////////////////////////////////
 //
 // ThemeProvider
 //
 //   ThemeProvider is an abstract class that defines the API that should be
 //   implemented to provide bitmaps and color information for a given theme.
 //
 ////////////////////////////////////////////////////////////////////////////////
 
 class ThemeProvider {
  public:
   virtual ~ThemeProvider() { }
 
   // Get the bitmap specified by |id|. An implementation of ThemeProvider should
   // have its own source of ids (e.g. an enum, or external resource bundle).
   virtual SkBitmap* GetBitmapNamed(int id) = 0;
 
   // Get the color specified by |id|.
   virtual SkColor GetColor(int id) = 0;
 };
 
 #endif  // APP_THEME_PROVIDER_H_